Log Message:
Update roundcube to 1.0.5.

RELEASE 1.0.5
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- Fix bug where some valid text in a message was handled as uuencoded attachment
- Fix wrong icon for download button in classic skin
- Fix bug where sent message was saved in Sent folder even if disabled by user \ 
(#1490208)
- Fix checks based on window.ActiveXObject in IE > 10
- Fix XSS issue in style attribute handling (#1490227)
- Fix bug where Drafts list wasn't updated on draft-save action in new window \ 
(#1490225)
- Fix so "set as default" option is hidden if identities_level > 1 \ 
(#1490226)
- Fix bug where search was reset after returning from compose visited for reply
- Fix javascript error in "IE 8.0/Tablet PC" browser (#1490210)
- Fix bug where empty fieldmap config entries caused empty results of ldap \ 
search (#1490229)